NESTED EXCITER AND MAIN GENERATOR STAGES FOR A WOUND FIELD GENERATOR

• US 20110006545A1
• Filed: 07/08/2009
• Published: 01/13/2011
• Est. Priority Date: 07/08/2009
• Status: Abandoned Application

• Current Assignee: Hamilton Sundstrand Corporation (Rtx Corporation)
• Original Assignee: Hamilton Sundstrand Corporation (Rtx Corporation)
• Inventors: Himmelmann, Richard A.
• Application Number:
  US12/499,292
• Publication Number:
  US 20110006545A1
• Time in Patent Office: Days
• US Class Current: 290/1.C
• CPC Class Codes: H02K 19/26 characterised by the arrangement of exciting windings
• CPC Class Codes: H02K 19/38 Structural association of synchronous generators with exciting machines
• CPC Class Codes: H02K 7/006 Structural association of a motor or generator with the drive train of a motor vehicle
• CPC Class Codes: Y10T 29/49009 Dynamoelectric machine

Abstract

A wound field generator (102) and a method of producing the wound field generator (102) with a nested exciter stage (307) and main generator stage (305) are provided. The wound field generator (102) includes an exciter stage rotor (310) coupled to a rotor member (312) and a main stage rotor (304) coupled to the rotor member (312). The wound field generator (102) also includes a rotating rectifier assembly (306) coupled to the rotor member (312) and electrically coupled to the exciter stage rotor (310) and the main stage rotor (304). The wound field generator further (102) includes an exciter stage stator (308) to establish field communication with the exciter stage rotor (310), and a main stage stator (302) to establish field communication with the main stage rotor (304). The exciter stage stator (308) and the exciter stage rotor (310) are radially nested about a central axis (316) of the wound field generator (102) with respect to the main stage stator (302) and the main stage rotor (304).

Claims

1. A wound field generator (102) with a nested exciter stage (307) and main generator stage (305), comprising:

an exciter stage rotor (310) coupled to a rotor member (312);

a main stage rotor (304) coupled to the rotor member (312);

a rotating rectifier assembly (306) coupled to the rotor member (312) and electrically coupled to the exciter stage rotor (310) and the main stage rotor (304);

an exciter stage stator (308) to establish field communication with the exciter stage rotor (310); and

a main stage stator (302) to establish field communication with the main stage rotor (304), wherein the exciter stage stator (308) and the exciter stage rotor (310) are radially nested about a central axis (316) of the wound field generator (102) with respect to the main stage stator (302) and the main stage rotor (304).

2. The wound field generator (102) of claim 1 further comprising coupling points (108) to connect the wound field generator (102) inline on a driveline system (100).

3. The wound field generator (102) of claim 2 wherein the driveline system (100) further comprises an engine (104) and a transmission (106).

4. The wound field generator (102) of claim 3 wherein the engine (104), the wound field generator (102), and the transmission (106) are driven by a driveshaft (314).

5. The wound field generator (102) of claim 2 wherein the driveline displacement (326) in the driveline system (100) attributable to the wound field generator (102) is less than 100 millimeters.

6. The wound field generator (102) of claim 1 wherein a first radial distance between the exciter stage rotor (310) and the central axis (316) is less than a second radial distance between the exciter stage stator (308) and the central axis (316).

7. The wound field generator (102) of claim 1 wherein a first radial distance between the exciter stage rotor (310) and the central axis (316) is greater than a second radial distance between the exciter stage stator (308) and the central axis (316).

8. The wound field generator (102) of claim 1 wherein a first radial distance between the main stage rotor (304) and the central axis (316) is less than a second radial distance between the main stage stator (302) and the central axis (316).

9. The wound field generator (102) of claim 1 wherein a first radial distance between the main stage rotor (304) and the central axis (316) is greater than a second radial distance between the main stage stator (302) and the central axis (316).

10. A method for producing a wound field generator (102) with a nested exciter stage (307) and main generator stage (305), comprising:

coupling an exciter stage rotor (310) to a rotor member (312) in the wound field generator (102);

coupling a main stage rotor (304) to the rotor member (312);

electrically coupling a rotating rectifier assembly (306) to the exciter stage rotor (310) and the main stage rotor (304);

arranging an exciter stage stator (308) to establish field communication with the exciter stage rotor (310) in the wound field generator (102);

arranging a main stage stator (302) to establish field communication with the main stage rotor (304) in the wound field generator (102); and

radially nesting the exciter stage stator (308) and the exciter stage rotor (310) in the wound field generator (102) about a central axis (316) of the wound field generator (102) with respect to the main stage stator (302) and the main stage rotor (304).

11. The method of claim 10 further comprising:

connecting the wound field generator (102) inline on a driveline system (100) via coupling points (108).

12. The method of claim 11 wherein the driveline system (100) further comprises an engine (104) and a transmission (106).

13. The method of claim 12 wherein the engine (104), the wound field generator (102), and the transmission (106) are driven by a driveshaft (314).

14. The method of claim 11 wherein the driveline displacement (326) in the driveline system (100) attributable to the wound field generator (102) is less than 100 millimeters.

15. The method of claim 10 wherein a first radial distance between the exciter stage rotor (310) and the central axis (316) is less than a second radial distance between the exciter stage stator (308) and the central axis (316).

16. The method of claim 10 wherein a first radial distance between the exciter stage rotor (310) and the central axis (316) is greater than a second radial distance between the exciter stage stator (308) and the central axis (316).

17. The method of claim 10 wherein a first radial distance between the main stage rotor (304) and the central axis (316) is less than a second radial distance between the main stage stator (302) and the central axis (316).

18. The method of claim 10 wherein a first radial distance between the main stage rotor (304) and the central axis (316) is greater than a second radial distance between the main stage stator (302) and the central axis (316).